THE RÔLE OF THE SOLUBLE SPECIFIC SUBSTANCE IN ORAL IMMUNIZATION AGAINST PNEUMOCOCCUS TYPES II AND III

Ross , Victor

doi:10.1084/jem.55.1.1

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Article| January 01 1932

THE RÔLE OF THE SOLUBLE SPECIFIC SUBSTANCE IN ORAL IMMUNIZATION AGAINST PNEUMOCOCCUS TYPES II AND III

Victor Ross

From the Bureau of Laboratories, Department of Health of the City of New York, New York

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Author and Article Information

Victor Ross

From the Bureau of Laboratories, Department of Health of the City of New York, New York

Received: July 28 1931

Online ISSN: 1540-9538

Print ISSN: 0022-1007

Copyright, 1932, by The Rockefeller Institute for Medical Research New York

1932

J Exp Med (1932) 55 (1): 1–12.

https://doi.org/10.1084/jem.55.1.1

1. When the soluble specific substance of Type II pneumococcus was fed to rats, little or no increased resistance to the organism was obtained.

2. When the specific substance of Type III pneumococcus was fed, an increased resistance to the virulent organism resulted. The percentage of animals protected is smaller than when the whole or the dissolved cell is fed.

3. When the specific polysaccharide of Type I was fed, no immunity against Type II or III was obtained, and the ingestion of the specific substances of Types II and III did not protect rats against the Type I organism.

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Copyright, 1932, by The Rockefeller Institute for Medical Research New York

1932

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